I have been messing around trying to get ChipChop to work through a GSM SIM800L module and after a bit of headache I've got it working!

I have managed to integrate the functionality in the ChipChop Arduino library but it does require a little bit of guidance how to set up so I won't be releasing this as an official update to the library. If you want to use the GSM then let me know and I'll send you the library update and give you instructions.

I have tested this on some Lilygo ESp32 Sim800L board and it's been working fine non-stop for a week without dropping the connection with ChipChop.

The limitations at the moment are:
- I've only found a way to get it working through PlatformIO, it is possible to get it to compile with Arduino IDE but would require bit more messing around

- No wss:// secure socket connection yet so the server_uri has to be specified as "ws://"

- Compared with WiFi there is a slight notable delay between remote interactions. I think it's simply the requests traveling through a GSM network and possibly how the GSM module works. Even though I have tried disabling any "sleep" modes it still feels like the module is having a light sleep after a while and once it gets active it definitely works quicker but slightly less responsive as over WiFi.

- Only tried it with an ESP32 and would probably need more messing around for a non ESP chip

If you want to try it let me know